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Allen County Climate

JanFebMarAprMayJunJulAugSepOctNovDec56.0°AVG °F

Avg Annual Temp

56.0°F

Annual Precip

42.2"

Annual Snowfall

8.6"

Extreme Heat Days

45

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.3"
1.6"
2.8"
4.4"
5.8"
5.4"
4.7"
4.3"
4.2"
3.5"
2.5"
1.9"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

6b

Minimum winter temperature range for plant survival

Growing Degree Days

4,207

Excellent for heat-loving crops

Last spring frost (32°F): 04/11
First fall frost (32°F): 10/27

Seasonal Overview

Comfort ZoneSpring46°65°12.9"Summer75°79°14.3"Fall45°69°10.2"Winter31°36°4.8"20°40°60°80°100°

National Comparison

Warmer than 57% of US counties
Wetter than 51% of US counties
More seasonal variation than 73% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Allen County

Climate Verdict

Allen County has a mild, with an average annual temperature of 56.0°F, moderately wet with 42.2 inches of annual precipitation, occasional hot days — 45.150000000000006 per year above 90°F, light snow averaging 8.6 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are cold, with January averaging 31.4°F. summers are warm — July averages 79.1°F. The 48°F seasonal variation provides noticeable but manageable change.

Outdoor & Gardening Guidance

The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.

Regional Context

Allen County closely matches the Kansas statewide average temperature of 54.8°F, it is also noticeably wetter, receiving 11.9 inches more precipitation than the state average.

Climate Profile

About Allen County Weather

Warmer and wetter than the national average

Allen County maintains an annual average temperature of 56.0°F, placing it several degrees above the national median. This humid subtropical climate receives 42.2 inches of rain annually, significantly outpacing the national precipitation trend.

A warm outlier in the Sunflower State

The county's average temperature of 56.0°F is notably higher than the Kansas state average of 54.8°F. Residents also experience 42.2 inches of precipitation, making it one of the wetter regions compared to the state average of 30.3 inches.

Warmer and wetter than northern neighbors

Allen County stays warmer on average than nearby Anderson County, which clocks in at 55.2°F. It also receives about one inch more annual rainfall than Anderson, reinforcing its status as a lush eastern Kansas corridor.

Hot summers with manageable winter snow

Summer heat is intense with 45 days reaching 90°F or higher and a July average of 79.1°F. Winters remain relatively mild, seeing only 8.6 inches of snow compared to the much heavier totals found in northern Kansas.

Prepare for humidity and summer heat

Residents should prioritize high-efficiency cooling systems to manage the 45 extreme heat days each year. With over 42 inches of rain, ensuring proper home drainage and gutter maintenance is essential for the wet spring months.

Frequently Asked Questions

What is the average temperature in Allen County?
The average annual temperature in Allen County, KS is 56.0°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Allen County get?
Allen County receives an average of 42.2 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Allen County?
Yes, Allen County receives an average of 8.6 inches of snowfall per year according to NOAA climate normals.
How hot does Allen County get in summer?
The average summer temperature (June-August) in Allen County is 77.1°F. The county experiences an average of 45 days per year above 90°F.
How cold are winters in Allen County?
The average winter temperature (December-February) in Allen County is 34.1°F. January, typically the coldest month, averages 31.4°F.

Track your own weather in Allen County

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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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